Why is engine stalling?

bakertodd said
Thanks in advance to anyone that can give me some 411 on this. Car is a typical 440 `71 Duster implant. `74 low comp externally balanced engine w/ stock cam, stock heads, Holley 750 Dominator 2X pumper, Weiand high-rise intake mnfld, ProParts headers, MSD, 727 RMVB, 8 3/4 rear w/ 3:55 posi, 29 in. M/T ET Streets. New heads or port job and hotter cam to match setup in the future.....Converter the next thing on my list however; low stall factory unit (ballanced) in it now. Probably going w/ B&M Holeshot 2500-3000 unit w/ B&M flexplate to balance it, 3:91 gears too (opinions?). Mostly a cruiser but may head to Epping someday when engine mods are done. Problem is that the car will stall coming off the highway at the bottom of the off ramp. Highway cruising RPM 2500 @ 60 MPH. When this happens the engine struggles to turn over and restart. Unburned fuel in the cylinders causing the tough turnover? No problems w/ starter motor/ turnover/ startup any other time. Also a stalling problem in 1st at stoplight when the temp is below 180 or 190 degrees. Is the tight converter the problem or the mix? Or? Engine does need total tune for sure.....

well first thing I would sell that intake and carb.thats way overkill for your motor you need a 780 vac.with a holley strip or an low plane intake with maybe a 1 inch spacer.and you don't need an MSD anything unless you're rich and don't know what to do with all your money! the stock dizzy will work very well with a spring kit in it.and I would use a mopar perf. cam only because I have had good luck with them.but Im sure there are others out there that are as good or maybe? better but I think the mopar cam will give more bang for your buck..and as far as converter I have used stock 340 ones behind the big block and stalled around 3000 and is very streetabl.do that with a good tune up (set plugs at 35)I think you will be very inprest with the out come with very little money spent.In facked what you can sell that intake and carb for will get you close to what you need and if you cheack with (rusty ratrod)he my be abull to fix you up with a good used carb,all these parts can be bought used in the for sale sec.just trying to help you with a cheap reliabl and inpresive ride.NOW that being said if you have LOTS of money:prayer:well now your talking a deferent ball game so its up to you witch way you go. tell us how much money you expect to spend and well help ya..............thanks for reading Artie