1/4 mile times

i respectfully disagree on the carb Joe - 8)

he's on a tight budget (i know that feeling all to well)

that car would love a 850 DP. My old cuda did with a similar combo .

For now , id make sure the carb is nice and clean and jet it up --as we know it only has primary jets , and possibly put the "lightest" spring you can in the diaphragm . Isnt it the yellow? or purple ? i cant remember . That way he isnt dumping extra $ into a carb that isnt going to be the best for the car in the future .
You can always sell the 750 and get a nice clean used 850dp next year

Hames--I will dig thru my Holley parts box - i might still have some secondary springs for that carb -- if so, you can have them . Plus a few jets-- i will never need any that small and ive got a ton of them -- so there ya go , $0 for a carb upgrade :cheers: