Help!!!!!

[2lucke4u]

Hi guys,
Need help , cannot find a solution to our misfire problem,the motor seems like it leans out and it pops and I lose power, the motor runs up to 6500 in 1st to 6000 in second and third , the motor is a 383 stroker ,victor intake, holley 750 dbl, msd hei and wires, hyfire 6 ignition ,comp cam xe294h cam good for 2800 to 7000, hooker super comp hedders, motor is bluprinted and has world products angle plug heads, 4400 stall ,th350 ,trans brake. ford 9 inch with 411 gears,
Here’s what we have done ,,had the problem last year and could not figure it out,, so we replaced the heads ,the ignition system ,plugs, pulled the cover and degreed the cam again and found it spot on, we checked firing order, timing, valve lash , changed jets in the carb ,checked secondary operation, we are stumped, some of you have given great advice in the past and we thank you,, we are going nuts here ,, on the good side the thing still ran high 11’s with the problem ,, any and all solutions would be greatly appreciated, thanks
Charles

[gerbsinmd]

What do the plugs look like after it does this? I think I would take it out wind it up until it does this missing, Kill the ignition and take foot off the gas at the same time, and coast to a stop, pull the plugs and see what they tell ya. Just a goofy idea.

Darrel

[2lucke4u]

The plugs look great,but thanks for the tip.

[73Sedan]

Charles, this may sound incredibly stupid, but are you using a factory style oil pressure switch to kill the fuel pump at loss of oil psi? Mine would run up through 1st like nobody's business but have a sputtery miss above 5000 in 2nd and 3rd. Wound up a poor connection of the factory harness at that switch!!
Robert

[ColinOpseth]

hey,
What's your fuel pressure at WOT?