[Mikemuir]

Yes it is still 351.Maybe been bored 30thou over
Fully recond with receipts from previous owner
It has 2v heads
Not sure of CR
Cam is COMP cam Part no 32-225-4 Cam grind no 280H
I have set timing to 16degree BTDC
Total 34degrees
Running MSD
I think it reaches total advance around 2500RPM but will check tomorrow
It has a REDLINE manifold
Vacuum at idle 1000rpm is 8

Forgot to mention that I have put 50cc accelerator pumps on carbs
Running brown cams on number 2 hole
accelerator pump squirts at first move of throttle
Have checked fuel bowl levels all ok
Fuel pressure 6 psi through regulator from electric fuel pump
Holley carb part 0-8007
Idle adjusting screw on linkage approx 2 turns out
( my next check was to check transition slot by removing carbs)
idle mixture screws about 1.5 turns out

It runs really good when you are a little bit more aggressive on the throttle and seems to enjoy the accelerator pump squirts
If you slowly accelerate it feels that it takes a while to get the fuel flowing from the carb which is where the bog/hesitation and backfire occurs (possible lean mixture?)
When it runs on WOT at higher revs it loves the tunnel ram and i can see vacuum secondaries opening .
Let me know your thoughts?
cheers