Quote:
Originally Posted by tooski
68 Firebird 'beater'
69 GTO 400 .040 over
RAIII heads #48 unported
Comp Cams 265 DEH - 211N-221E @ .050, 442I 465E lift
HS 1.5 rockers
Performer RPM
Holley 3310 69P 73S 8.5PV
HEI
Headers
TH350 w/shift kit
stock converter
12 bolt 3.07 posi
Timing issues
Runs like crazy
No 1/4 times
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Update on this.
To get away from detonation, I swapped heads to 6X-4. The following year, near the end of the season, I did a compression check. One cylinder was half of what the others were. So that engine came out.
The new build went in. It is destined for my '75 Firebird, but that car will be a while yet.
1972 400 988 block .030
74cc 295 KRE d-ports
T2/ 4779 Holley
HC-02 (231/243 @ .050)
.512 lift with HS 1.65 rockers
Reworked HEI
Hedman Hedders
Summit S/S TH350
3k converter (flashes to 2800)
3.07 posi (stock from camaro)
255/60/15 BFG T/A rears.
https://www.youtube.com/watch?v=nkir0uHiL44
I thought the other engine ran well. Test drive with this one: spun the T/A's to 5800, shifted to second, still spinning and started going sideways. Got out of it then.
Hopefully I will get a track time at the once a year drags, depending on tech.