dont even worry about it....a 302 on spray isn't anything for a 400rwhp s chassis to be worried about.....tell him I'll run him for $100...I'm nowhere near your power level. just check for drag radials...you'll know if he has a big cam, it'll lope, or he'll have the idle turned up.....just make sure it's not a 351 variant engine....that is something to worry about though.