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Flat Slide Carburetors have advantages over round slide carburetors in airflow and fuel signal. The improved fuel signal allows better and more precise fuel metering for better performance and consistency.
EC dials in the fuel calibration to optimize air-fuel ratios for maximum power and acceleration. The carburetors are dyno-tuned and within tuning range for changes due to atmospheric conditions.
The carburetor flows 126 cfm @ 28-Inches, providing sufficient flow for almost all modified cast heads and stock or mildly modified billet heads. EC uses their billet velocity stack to improve airflow from the carburetor's inlet and mount your air filter. The intake manifold is designed to fit the large port of the EC Evolution cast cylinder head.
We recommended using the flat slides mostly on straight-line drag racing machines or mini bikes that lean when turning. The flat slide is also a good choice for karting or 4-wheel racing machines but may benefit from a diaphragm carburetor like our XR Intimidators. If you are unsure if this carburetor fits your application, call before ordering.
The carburetor is tuned for gas at less than 1800 feet above sea level. Anything more will require additional tuning.
Use .900 or bigger headers for the best performance. The carburetor will be too rich and may not adjust for stock or weenie pipe exhausts.
- EC Built TM28 Carburetor Setup for Gas
- EC 472EVOINT Billet Intake Manifold
- EC 336VS Billet Velocity Stack
- 642EC Air Filter
Returns- Returns must be communicated by customers within 7 days of delivery and sent back within 30 days to receive a refund. No returns without authorization will be accepted. All returns must be accompanied by a copy of the receipt and a note. All items must be returned complete and in new condition.
All returns are subjected to 20% processing and restocking charge after the product has been inspected. The shipping cost will not be refunded.
Refunds will be made back to the same method of payment when ordering those parts. We will not refund a different method of payment.
Non-returnable Items Include- Close Outs and Clearance Items, Special Orders, Custom Orders, Used Parts, and Cut to Length Items. (Other items may apply)
Shipping: All orders are shipped UPS Ground, UPS Surepost or USPS Priority when ordering online. Shipping charges are calculated based on weight, size, and quantity of boxes in addition to processing and handling including insurance. All shipping charges are the customer's responsibility (even if charges online are not the same as emailed or phone orders).
All standard shipping orders will be shipped within a day or two on weekdays. Orders placed on the weekend (Fri-Sun) will be shipped Monday or Tuesday or the first weekday after a holiday. Custom or Handbuilt Products may require more time to be built before shipping. For any reason, an order may be delayed or prevented you will be contacted through phone and/or email.
Express/2nd Day/Next Day Shipments: Express orders must be made by phone orders only! Orders placed after 12:00 p.m. CST. will be processed the Next Business Day. UPS will only guarantee next day shipment. If you choose 2nd-day shipments expecting it before the weekend, UPS does not guarantee its arrival
Additional Fees: Double Check that the address you gave is correct. You may be charged additional fees to redirect your package to the correct address.
PO Boxes: We can ship to PO Boxes using USPS. However, UPS will only accept shipments to a valid street address. They do not deliver to P.O. Boxes.
International Shipping: International buyers are responsible for paying duties, taxes, and applicable customs brokerage fees separate from the merchandise cost. Buyers will generally pay these fees upon receipt of your shipment. Buyers may be charged additional fees once they receive the package. Read our international policy here.
Paypal: All orders paid by a verified PayPal account will be shipped to the address on the Paypal account to comply with Paypal's policy. No Exceptions.
UPS Estimated Shipping Lead Times
USPS Estimated Shipping Lead Times