There has been a lot of discussion on using MSD 6 or 6al with mostly good results. Now the msd6-btm has an added vacumn port that when connected compensates for boost by retarding the spark by up to 15 degrees, however I understand that our own ECU does that to some extent already. The question is this: If you are upgrading to a 20G (using the stock TD05) will the increased CFM at 10psi still be compensated by our ECU? I have aslightly modded engine with upgraded head, vlaves, ARP, solid cam

Spring meet April 29th, 30th, and may 1st at the vacation lodge. This will be an extra meet for those who can't make it on July 4th.

Can someone tell me where the the fuel sending unit grounds? I chased the harness to a joint connector by the tail light harness and then it goes up the driver side of the body. Where does the harness ground to the chassis?

Where do you guys get your blow off valves, where's the best place to install it and do I have to do any tuning to compensate for it?