[Bill Harris]

I'm a little confused. If you are going to use the AFR heads it will never be a Boss 302. The Boss 302 heads are what make a Boss a Boss and there are no aftermarket versions of the Boss head. The NHRA classification guide does indicate with the && notation that the AFR1399 head is acceptable on the 302/290, but that makes absolutely no sense and is an error IMHO. All the aftermarket Windsor SBF heads are inline valve heads while the Boss 302 heads are canted valves. The Boss was essentially a 302 Windsor with small chamber, large valve Cleveland heads. Claiming a Boss 302 with an inline head is just wrong, heresy in fact. Finding real Boss 302 heads will set you back a bundle.

That being said, since you are talking about SS or SSGT, if this abomination is really legal the only thing you will gain over the 302/230 combination is the 780 Holley carb and some compression since you can use a domed piston. But in any case, it damn sure isn't a Boss 302!