get a 700 dp. if you plan on using nitrous you can go 750. a 306 will work good with a 750 dp if its a race motor and you rev it which you plan to do. but you also want to drive it so theres the problem. why not tune the carb you have? 66/76 jets are good for a mild street motor not for a race motor that revs. you will have to run it a little rich at low rpm due to the design of the motor but up top it will pull harder.
|