All you can really do is delay the shift. You can't make it shift early. B&M makes a nice kit to alter the valve body to give firmer shifts and raise the pressure. Actually helps the transmission.
If the electric motor still runs, you may just need gears.
http://www.madvet.com/shop?frame=3.853
Here is the whole unit.
http://www.ecklers.com/product.asp?pf%5Fid=39456&dept%5Fid=1158
The manifold does have a coolant passage there. The gasket with restriction does not completely block the flow of coolant. I has about a 3/16 hole in it. My FSM doesn't show it.
I am assembling my 86 L98 w/cast iron heads. The gasket set has two sets of intake manifold gaskets. One has the restricted water passages in the rear and one doesn't. Which one should I use?
I am rebuilding my 86 L98 with cast iron heads. I plan to keep the heads after a little porting, I will keep the stock TPI intake. I run headers with a straight performance exhaust. I need inputs on a cam to give a little better performance without ruining the idle.
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