would 600cfm or 500cfm be better for a stock engine? was thinking of getting that carb for my daughters car, she's 15 and just got her license. it's a stock 318 with performer intake and holley carb. i'm thinking of electric choke for easy starting for her. she is just a kid and doesn't really understand the whole "manual choke thing."(her words) any issues with adjusting the choke? i've never had elec choke before so i don't know anything about adjustment.