Nos carbs.

[Terry Cain]

Originally Posted by Dwight Southerland

Read pp.58-62 of this document -

https://www.nhraracer.com/Files/Tech...edProducts.pdf


Also, from the Rule Book, Section 11A, page 3:
"CARBURETOR
Must be correct year, make, and model specified for car’s
engine; fuel or air bleed passages may be resized. Drilling idle
holes in primary throttle blades permitted. Other modifications
prohibited. Sandblasting, grinding, flash removal, dry film
coating, or any other modification to carburetors prohibited.
Replacement carburetors permitted provided they are
same model, type, throttle bore, and venturi size. Computer
carburetors use latest model non-computer carb for engine
application. " (Emphasis mine)

First part of that; Must be correct year, make, and model specified for car’s
engine; Year was eliminated years back. Model has been modified some. Example; Chevy's can now run a front fuel inlet Qjet instead of 90degree inlet as they came out with. Main thing they do now is measure butterflys, and Venturi's.