Wildgoose Performance - Frequently Asked Questions

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		Frequently Asked Questions How much horsepower should I expect to gain from having my Cylinder heads ported? What size camshaft should I put in my engine My engine should make 450 Horsepower but doesn't perform at the track like it should, what should I do? Should I get rid of my Q-Jet and replace it with a Holley carburetor? Can I over cam my engine? I am considering running forced induction or nitrous oxide, do I need to port my cylinder heads? How much horsepower should I expect to gain from having my Cylinder heads ported? You can expect to gain between 30 and 50 horsepower on an 8 cylinder engine, 4 cylinder 15-20 horsepower + from most porting, depending on what the heads flow prior to the work. We flow the heads before and after so you will know the gain before you bolt them on the engine. The gains on some heads can be more depending on the extent of port work done. Return to top What size camshaft should I put in my engine? We pick our camshafts based on the cylinder head flow numbers. If the head quits flowing at .400" lift why install a .550" lift camshaft. Type of vehicle eg. Street, Drag, oval track, also play a role in selecting the proper camshaft. Return to top My engine should make 450 Horsepower but doesn't perform at the track like it should, what should I do? We can dyno test engines in house. If the engine doesn't make the torque or horsepower it should we determine why, ie: mismatched combination, poor cylinder head, improper camshaft head combination etc. If it does make the predicted power there is a problem in the driveline, or chassis ie: Torque converter, transmission, rear end gears, tires etc. Return to top Should I get rid of my Q-Jet and replace it with a Holley carburetor? No, in most cases a Quadra Jet prepped by us will out perform a Holley to a point. Dollar for dollar a Q-Jet is cheaper for the same or better performance. If a Holley is required for your application we can help you with it as well. Return to top Can I over cam my engine? Yes. If your engine is over cammed, it may not produce enough vacuum for power brakes, MAP sensor, carburetor signal etc. We match all our cams to the engine combinations i.e. Cubic inch, cylinder head, application. Return to top I am considering running forced induction or nitrous oxide, do I need to port my cylinder heads? No, but you would be optimizing your performance by porting the heads. The more horsepower an engine makes naturally aspirated through a head the more power it will make with a blower, turbo, or nitrous. With a forced induction engine we spend more time on the exhaust port. Since air/fuel is being forced in, it needs extra help to get the spent gasses out, so a good exhaust port is very important. Return to top