I did my friends 94 accord and when I place the straw into the TB plate it rev the engine to high so what we did was inject the sea foam then start the engine (so the liquid would be sucked into the TB) did that 8 times, then let it sit for 5-6mins. Took a spin on the freeway WOT. could be done both ways

*** just dont pour it liquid all at once into the TB or you'll hydo lock your engine ***
take your time