327 350 hp carburetoration

Asked by Apr 30, 2016 at 02:47 PM about the 1968 Chevrolet Corvette Convertible

Question type: Maintenance & Repair

Have all original 1968 327 350 hp vette. All original
but carburetor. Replaced with like rochester 4 bbl.  
Car is running super rich. Pulled carb apart it check
jet size can't see markings for size but they are
large.  What was the stock jet size for that car and
rochester carb or what should I try for 3000ft
elevation.  Thanks
Steve

3 Answers

22,465

1968 7028220 327 M CHEVY CORVETTE 350 HORSEPOWER.....put a 780 holly on it..

That's the easy way out. This is a 100% original car and really want to keep it that way. I already have different carbs and intakes that would easily fix problem. Doesn't answer question !!!

13,095

Elevation of 3,000 feet? It is going to run rich unless you have it adjusted. Best to maybe go to a dyne tuner so he can judge it best on the computer for the proper adjustments. Most carbs are set for sea level so you will run rich. That is why I am going to fuel injection for my dual quads on my 69. FiTech makes a kit for dual quads, and single carb replacements. ($750) Your jets may be too large, but a good tuner/dyno-tuner will put in the best ones. Just saying, at 3K feet, the atmospheric pressure changes a lot and you will constantly be going out of tune. Spent the $100 + to tune it properly and you will not be sorry.

Your Answer

Add photo

Related Questions

Corvette

Looking for a Used Corvette in your area?

CarGurus has 20,314 nationwide Corvette listings starting at $3,495.

ZIP:

Search Chevrolet Corvette Questions

Chevrolet Corvette Experts

#1 John Carson
John Carson
Reputation 2,190
#2 carGrrl
carGrrl
Reputation 1,370
#3 Vincent Parker
Vincent Parker
Reputation 1,260
View All

Related Models For Sale

Used Chevrolet Camaro
164 Great Deals out of 33,234 listings starting at $1,995
Used Ford Mustang
376 Great Deals out of 47,164 listings starting at $1,999
Used Porsche 911
83 Great Deals out of 4,565 listings starting at $11,992
Used Dodge Charger
284 Great Deals out of 27,074 listings starting at $2,500
Used Mercedes-Benz SL-Class
50 Great Deals out of 2,997 listings starting at $2,900

Used Cars For Sale

2017 Chevrolet Corvette For Sale
5 Great Deals out of 10,350 listings starting at $45,711
2016 Chevrolet Corvette For Sale
10 Great Deals out of 1,574 listings starting at $42,602
2015 Chevrolet Corvette For Sale
8 Great Deals out of 673 listings starting at $40,995
2014 Chevrolet Corvette For Sale
3 Great Deals out of 822 listings starting at $36,991
2013 Chevrolet Corvette For Sale
10 Great Deals out of 378 listings starting at $24,000