Rev....

rev, hope you read this. my brother in laws 67 coupe is running to damn slow considering the work he's done and it sounds very similar to the combo you are running now. he has a 302 with '66 289 heads that have been shaved and 351 valves installed..rebuilt etc. the cam is a .471 lift summit house cam, 600 cfm holley, edelbrock performer intake, headman 1 3/4 primary long tube headers, 8 inch rear with 3.80 gears and a locker. he runs a stock c4 trans and shifts around 5300 rpms. what is crazy is that this car weighs about 2800 lbs and only runs 9.6 at 77 mph in the 1/8 mile. please help me out, im at a loss and i feel sorry for him. i think he loses a lot on his 2.4 60 ft. times. the car pulls hard 3000-5000 and breaks traction when it shifts but feels like a turd at takeoff. it will only break the tires loose if you break-torque the crap out of it. i know you give up torque with a bigger cam and an automatic, and i know the primaries are way too big for unported stock heads, but the car is not heavy. we have the initial timing on the stock single points type distributor at 12 degrees initial....the same as a hi-po calls for, every part is bolted on right out of the box and the spark plugs are light tan as they should be. he's already wanting to throw a stall converter at it but i think thats jumping the gun. ive never liked throwing parts at a car that should be quicker as is first. any help you can offer would be appreciated, or if you know someone that can help us thats cool too.

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67stang coupe, carb on 5.0, 4 speed, 4.11's....8.52 IN 1/8 @83 wanting 7's