dirt track racer 81

iTrader: (45)

My race car has been sittin in my garage this year, a friend wanted to take my msd stuff just for a back up in a big race so i let him borrow it. Now it ran 2 weeks ago, i start up every once in a while to make sure it still runs. Now i go back to put it on. It has a 4/7 swap cam with a firing order of 1 8 7 3 6 5 4 2. I get my number 1 piston up and get the distributor set and the number 1 plug wire is set according to the rotor. the distributor is locked out so no advance. no heres my problem no matter where i set the timing its backfiring out my carburetor, ive done burnt the hair off my right arm. ive done checked my plug wires several times, the box is wiring correctly, it had a 4 wire and 3 wire connector so its not wired wrong.ive been messin with this for several hours now

viciousknid

iTrader: (8)

and your sure your not 180? Piston up with wrong valve up.

Only ask cuz i did that on my blazer once.

dirt track racer 81

iTrader: (45)

ill go pull it back out and redo that again...damn im ****** tired still hungover bout to puke..i cant even think right now

dirt track racer 81

iTrader: (45)

i gave up.. tomarrow im gonna stick an hei i got and see if it runs

truckmann

iTrader: (8)

I had an MSD box on my old mud truck go haywire for now apparent reason. Stupid thing started just sending spark whenever it wanted to. Pretty much fried the inside of my distributor cap.

dirt track racer 81

iTrader: (45)

ive seen em go bad for no reasin too. thats why nascar has a backup

dirt track racer 81

iTrader: (45)

ok so i stick in the hei and still does the same thing.. its got me whipped..ive done this a hundred times and never had any problems.. the cap and rotor line up when the number 1 piston is up. all the plug wires are in the correct spot 18736542 drivers side 1357 passenger side 2468..wtf am i doin wrong

James B.

iTrader: (1)

You say it's been sitting. Pull the cap and check inside for moisture. Maybe it's got carbon trails in it. I spray the inside of the cap with WD-40 before I put it on.

dirt track racer 81

iTrader: (45)

the msd was ok and the hei i put on this mornin in brand new..

kbracing96

iTrader: (26)

Still sounds like your a 180 out. I always pull the number 1 plug out and stick my finder in the hole and turn the motor over with a socket till I feel compression pushing my finger out of the hole, then roll it up to about 8* advanced on the mark. Then I drop in the distributor, and put the cap on and line up the cap with where the rotor is pointing. That way I know there is about 8* advance in it and pretty much always fires right up and runs.