Ask Away! with Jeff Smith: Why is There Wet Engine Oil on My Spark Plug Threads?
I have a 355ci small block Chevy that was rebuilt about a year ago and we included a set of Edelbrock aluminum heads, a Comp flat tappet cam, and an […]
Ask Away! with Jeff Smith: Some Good, Mild Performance Upgrades to a Direct-Injection Chevy Gen. V 5.3L LT Engine
I am rebuilding a 2014 L83 5.3L engine for my Silverado pickup and I’m considering making some changes to improve the performance slightly. I have looked into adding larger fuel […]
Ask Away! with Jeff Smith: Should I Put a Small Block or Big Block Engine in My 1974 Chevy Truck?
I am trying to decide on an engine for my 1974 Chevy project truck. The truck has a 350ci small block and a TH350 but I am thinking of going […]
Ask Away! with Jeff Smith: How to Connect a GM CS-130D Style Alternator in Place of an Original CS130
I have been looking for how to wire a CS-130D alternator in place of my CS-130. I came across your article on how to hook up a new alternator in […]
Ask Away! with Jeff Smith: Should I Drill Air Bypass Holes In All 4 Carb Throttle Blades to Improve Idle?
Recently you wrote an article that mentioned drilling holes in all four throttle blades on the Holley carb to change the blade position compared to the transfer slot. I have […]
Ask Away! with Jeff Smith: Modern GM Transmission Upgrade Options for an LS-Swapped 1970 Chevy Nova
I’m looking into which late model overdrive automatic would be the best choice behind the 6.2L LS in my ’70 Nova. Chevrolet Performance has just announced availability of the 6L80E […]
Ask Away! with Jeff Smith: Some Calculations & Guidelines for Blending Fuel Octanes
I came across your article on blending E85 with pump gasoline and I have a question. I have a C7 ZR1 that is un-tuned that needs 96 octane to prevent […]
Ask Away! with Jeff Smith: Fitting an Electric Fan Conversion in a Big Block-Swapped 1966 Chevelle
I’m trying to help out a friend with a ‘66 Chevelle project. It has a big block with a six speed in it. I think it was a small block […]
Ask Away! with Jeff Smith: Picking the Best Antifreeze for an Older Vehicle
I have a ’90 Chevy pickup that is rarely driven but has been stored in my heated garage for several years. I have a new project that will force this […]
Ask Away! with Jeff Smith: Tracking Down a Phantom Battery Voltage Drain in a 1967 Chevy
I have a 1967 Nova that drains its battery if I leave the car sitting for more than a couple of days. I’d like to try to fix the problem […]