Kflett Posted April 22, 2015 Report Share Posted April 22, 2015 I have a 5k rebuilt with 20 over piston and cam grind of 262 in my kp36 pick up daily driver. Those are the only modifications to the engine. the exhaust is two inches from manifold back. Thinking of getting a 32/36 Weber, the question; with this set up is it necessary to put on extractors? I currently have stock intake and exhaust manifold and carby off a 3k. I know that generally cam, carby and extractors go together. I live in Central America and getting extractors is not very easy. Any input.... Thanks Quote Link to comment Share on other sites More sharing options...
GJM85 Posted April 22, 2015 Report Share Posted April 22, 2015 Extractors are recommended but not necessary. Quote Link to comment Share on other sites More sharing options...
parrot Posted April 22, 2015 Report Share Posted April 22, 2015 Extractors are often fairly fragile also. You may wish to consider finding a spare standard exhaust manifold and getting that cleaned up internally (as well as your inlet manifold). Also match port both the inlet and exhaust manifold to your head. Quote Link to comment Share on other sites More sharing options...
tojo2 Posted April 23, 2015 Report Share Posted April 23, 2015 Theres two types of standard exhaust manifolds, 4 - 1 and 4 - 2. Recomend 4-2 style, Matching exhaustports may not be a good idea. Having larger ports in manifold than head apperantly helps avoiding exhaust gas revertion Quote Link to comment Share on other sites More sharing options...
Kflett Posted April 23, 2015 Author Report Share Posted April 23, 2015 (edited) Thanks for your input, it´s appreciated... Edited April 23, 2015 by Kflett Quote Link to comment Share on other sites More sharing options...
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