Originally Posted By 70dusterjohn
Could my msd box going bad cause bad performance. I think it just took a crap on me today ..


I suppose....... but, you said:

Quote:

Checked wiring
Checked timing
Checked comp test 170-175
Checked leak down was not a noticeable difference
Checked cap and rotor
Checked crank trigger
Checked ignition box/ tried my 7al


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads