The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 250 is constantly giving me fits... considering something different

cadillac_al · 10-13-2017, 09:28 AM

I had a 1976 250 a couple years ago giving me fits. It would start and run fine in neutral but could not take any load. I took the Monjet apart several times and tried to figure out the power jet system and finally had to admit defeat. I bought a NOS Holly Economaster for it and it has never run better. Maybe if you could find a Monojet expert he could set you up. Mine had HEI, if you have points then your problems are doubled.

I see 68GMSEE is a Monojet expert. Maybe you can PM him and have him rebuild one for you.

10-13-2017, 09:28 AM	#6
cadillac_al Registered User Join Date: Oct 2013 Location: Maine Posts: 2,334	Re: 250 is constantly giving me fits... considering something different I had a 1976 250 a couple years ago giving me fits. It would start and run fine in neutral but could not take any load. I took the Monjet apart several times and tried to figure out the power jet system and finally had to admit defeat. I bought a NOS Holly Economaster for it and it has never run better. Maybe if you could find a Monojet expert he could set you up. Mine had HEI, if you have points then your problems are doubled. I see 68GMSEE is a Monojet expert. Maybe you can PM him and have him rebuild one for you. __________________ 76 Chevy K20 76 GMC K15 77 Chevy C10 77 Chevy K10