smokenchoken |
01-22-2014 02:19 PM |
71 360 missing
:-X19 :-X19 :-X19 working on my cousins kids truck the last few days its a 71 f250 360 435np only modification to motor is an aluminum 4bbl intake and holley carb and the trucks motor sounds good no misses at all when its not under power, you can rev it up and it never misses a lick but once you get it out on the highway it misses and cuts out and lose's power.... we have replaced dizzy (still does it) changed carb's (still does it) changed coils (still does it) changed plugs and wires (still does it).........i have searched and searched but cannot find a single vacuum leak... i have looked in the dark for any wires grounding out or sparking and replaced all wires that could have possibly been bad from the firewall forward........ the truck smokes a bit when you take off first in the morning or if you let it set for a while (i assume valve guide seals are bad did leakdown test and compression test and all was good only one cylinder was 7 lbs less than expected)......and then he tells me he ran it out of oil 2 miles from home a couple weeks before problems started and limped it home with no oil pressure..... so am i right to assume that he might have wiped his cam lobes a little bit causing this entire fiasco? would the cam cause this effect? whats your feelings on this fellas i have troubleshooted all the other possible problems i think :-huh
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