Bruce, This going into a '72 Riviera with a Jim W. Built short block (forged pistons, 288-94h cam IIRC) topped with ported TA SE heads, an SP1 intake, 3.42 rear. I have a nice cruiser Buick, I'm looking for this one to be a bit more of a brute. Mostly street driven, but plan to race it at a few events a year. Definitely want it to get out of the hole (heavy car!) and have good top end. That idea is what started down the road of the switch pitch. Given that, does that give you some ideas on timer suggestions? Thanks!