His engine sounds real similar in set-up to my 340, that's why I did not hesitate to recommend the changes that I have done. I have that set up with my M/P distributor and I drive my GTS on the street with no problem, plus I race it regularly with outstanding results. It is FAR from sluggish off the line. No vacuum advance at all-all mechanical. When I take it to the track, I run my initial up to 20*. Around town I keep it at 15*.
If my set-up was different from Shane's, I would not have suggested it.