[decooney]

Pliskin,
FYI: I encountered notable restriction on my ERA factory sidepipes, and Tom was all over me about it after I installed my motor early on. I hit a wall, and it would rev up, but seemed like anything over 5,600rpms to say 6,400 was sort of tapering off. In fact, we discussed this topic again recently. Since I changed the design of my exhaust mufflers years ago, I had never gone back and tried a larger carb. I tried the larger carb last week and it worked out pretty well. Definitely moving some air.

This might seem goofy, but its something I was wondering about as another option for your car based on this topic of "exhaust". If you or Tom determine notable restriction and a loss of power at some point, hindering your top end performance, I wonder did you look into doing something where the exhaust might exit from multiple points, like sides and rear both?