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iron headed 306 @ 3200lbs with 26's and a 5spd

3K views 65 replies 25 participants last post by  ls1killa 
#1 ·
#3 ·
this is the second time to the track with the hose. its time to start leanin it out a lil bit.
 
#6 ·
whats it run on motor ? how much is it picking up on the 200 shot ! nice runs.....
 
#8 ·
WOW, that things loves the bottle then picked up around 250 hp to the wheels on the calc ? are you sure you got the right jets in there, i have seen nitrous kits make advertised hp to the wheels but dam !...... flyin nun the less great job on the tune.
 
#10 ·
i have been reading the plugs and leaning it out a lil so it has probably picked up more than 200hp on the 200 pills.
 
#12 ·
What cam do you have in it? I had similar results power wise with my old 306.
 
#13 ·
he has a comp xe282hr
 
#23 ·
Whats the compression ur makeing? What size gasket are the heads ported too.. ? And most importantly what, how much timeing are you pulling? How much R U running total?? What spark plugs are u running? Thanks Alot in advance.. Im fixing too tune a combo out pretty close too this, except with a pos AOD.. lol!! Na.. Its a nice tranny.. Just Not a TKO 600!!

AnyWays Kudo's man, awesome #'s.. Im looking for 10.80's thru this little 3200lb AOD car on M/T Radials..
 
#25 ·
I guessed about 10:1 on compression. I did the port work which consisted of basically taking it just far enough to get past the casting lines on the intake and exhaust runners and taking the smog bumps away. First and only time I have ever ported heads. 1.94 int. 1.60 exh. valves. About 25 degrees total on timing. NGK-TR6 plugs. Zex perimeter plate

I have no problem telling people what I use or what I've done. If someone wants to do something cause they liked the way I did it then I take it as a compliment.
 
#26 ·
an what do u gap the NGK's @... about .035" or more? Did u have any Piston Valve clearance issues??

I have a pretty close combo.. I took my GT-40's up too a Felpro-1262 gasket, w/Fierra stainless 1.94's.. gonna match the RPM Airgap also.. A little smaller camshaft bout .528" intake & ..536 exhaust w a 1.7 RR.. about 10.3 to 1 ...An the all mighty NX Giggle Gas!
 
#27 ·
.028" Too much gap and the nitrous will blow the spark out.

I was floating valves a little bit with my old springs so I pulled the heads off and there was marks on all the pistons. I just smoothed them out with a dremel and got better springs. My heads were milled a little before I got them. One thing I did also was have the intake milled so the runners would line up perfect. The little details add up.
 
#35 ·
So what did it run on the bottle? Not allowed to watch utube at work.
Thanks. Len
 
#37 ·
is the 12.70 @ 106.00 pass on the nitrous tune because i think the car has alot more in it on motor because that thing is picking up to much on the bottle !
 
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