The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Difference in Hiway RPM-3.73 to 3.42

**CAMAROBOY68SS** · 06-03-2023, 09:16 AM

I did this swap (except stayed a peg leg) at 65-70 I am still turning 2700ish on the highway. I am now really considering pulling my M21 4 speed for a 5 speed to help even more with the highway rpm

06-03-2023, 09:16 AM	#4
CAMAROBOY68SS Senior Member Join Date: Apr 2022 Location: Hillsboro, Oregon Posts: 419	Re: Difference in Hiway RPM-3.73 to 3.42 I did this swap (except stayed a peg leg) at 65-70 I am still turning 2700ish on the highway. I am now really considering pulling my M21 4 speed for a 5 speed to help even more with the highway rpm __________________ The Twins: 1968 C10 SWB - Blue 327/5 Speed 1968 Camaro SS/RS - Blue 327/4speed C10 Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=833278 The "Others" 1933 Ford Pickup (Camaro in disguise) 2017 Camaro SS Life long Chevy guy