Turbo qjet differences?

MrSony

Geezer

Jun 27, 2021

Friend is tossing around idea of purchasing 301 turbo firebird. Got me wondering, what makes the turbo qjets different?

Toggle signature

1985 Buick Regal Limited 107,000 miles as of 4/13/20.
2014: 110hp 231/3.8L w/TH200c w/7.5 10 bolt 2.41 Open 84,*** Miles
2016: 1976 250hp 8:1 mild 350 SBB, .030 over, Comp 268 cam, 800cfm Quadrajet w/TH350 #1 (rip) and TH350 #2
2017: 1970 315hp/410ftlb Buick 350 Code SP Stock w/ 800cfm Qjet and Crower Level 3 cam (rip) and TH350 #2 (rip).
Now with TH350 #3 with TransGo 350-1-2 Shift Kit, 2500 stall Hughes Converter, GN 8.5 posi with 3.42s.
Does Consistent 10.3 @ 72mph in the 1/8th with 2.41s/1200 stall. 1/8th with 2500/3.42 TBD. Looking for 9.0.
2020: 1971 Buick 350. 9.75:1, 3.0 v6 flat top pistons, TA 310 Cam, Hooker Headers, TA Stage 1 Dual Plane Intake, 800cfm Qjet. Runs consistent 9.5.

1970 350: 211rwhp @5003 RPM/263rwtq @2781 RPM
1971 350: 247rwhp @~5000 RPM/274rwtq @~2800 RPM

Animated GIF-downsized_large.gif

MrSony
Jul 19, 2019
1

Bonnewagon

Lost in the Labyrinth

Supporting Member

Jun 27, 2021

A few things are different because of the boost affecting vacuum actuated things. See this site. Read, then ask away. Good guys and lots of info. http://www.301garage.com/forum/

Reactions: 1 user

Search